EG4 vs BatteryMonitorBL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EG4
This utility app monitors your device's battery health in real-time. It displays key metrics such as current, temperature, and voltage via Bluetooth connection. Keep track of your battery's vital signs to ensure optimal performance.
- Monitor battery health
- Display current, temperature, voltage
- Bluetooth connectivity
- Real-time status updates
- Device compatibility for iPhone/iPad
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EG4 is a tool app which monitor the battery health status like currency, temperature and voltage etc using bluetooth
BatteryMonitorBL
Monitor your device's battery health in real-time. View crucial metrics such as current, temperature, and voltage. Connect via Bluetooth for seamless data acquisition.
- Real-time battery health monitoring
- View current, temperature, and voltage
- Bluetooth connectivity
- Supports iPhone and iPad
- Free to use
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BatteryMonitorBL which monitor the battery health status like currency, temperature and voltage etc using bluetooth
Screenshots
Verdict
The clearest difference is update cadence: EG4 at every 3 weeks against BatteryMonitorBL's every 6 months. EG4 also leads on ratings volume (12 vs 3). BatteryMonitorBL's advantage is review sentiment (50% vs 25%). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 2.3 for EG4 against 2.3 for BatteryMonitorBL. Both are backed by a comparable volume of ratings — 12 and 3 respectively. Written reviews are what separate them: 25% of EG4's written reviews are positive against 50% of BatteryMonitorBL's.
EG4 ships an update every 3 weeks, BatteryMonitorBL every 6 months. The most recent releases landed on September 16, 2026 and October 13, 2026 respectively.
| Parameter | EG4 | BatteryMonitorBL |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (12 ratings) | 2.3 (3 ratings) |
| Positive reviews | 25.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 12 — better | 3 |
| Update frequency | Every 3 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | 琼莉 吴 | Shenzhen zetara power system Co.,LTD |
Customer experience
EG4
BatteryMonitorBL
In-app purchases
EG4
No in-app purchases
BatteryMonitorBL
No in-app purchases
